Kong Futura Foot Work Ascender Left Black 4.8oz. New version with lever that prevents accidental release of the rope. Equipped with anti-torsion stirrup. Perfect for rope access and arboriculture. Specifications for Kong Futura Foot Work Ascender: Manufacturer: Kong Weight: 4.8 oz Features of Kong Futura Foot Work Ascender Rope compatibility: 8mm-13mm Package Contents: Kong Futura Foot Work Ascender Kong 87609NO6SKK: Futura Foot Work Ascender Left Black 4.8oz